How are bones classified? Axial skeleton – bones of the skull, vertebral column, and rib cage Appendicular skeleton – bones of the upper and lower limbs, shoulder, and hip

Long bones Long bones – longer than they are wide Most bones of the limbs (even fingers and toes) Figure 6.2a

Short bones – Cube-shaped bones of the wrist and ankle – Bones that form within tendons – Patella, wrist and ankle bones Figure 6.2b

Flat bones Flat bones – thin, flattened, and a bit curved Sternum Ribs Scapula Most skull bones Figure 6.2c

Irregular bones Irregular bones – bones with complicated shapes Vertebrae Hip bones Mandible Figure 6.2d

Bones and Cartilages of the Human Body Figure 6.1